[solanum.git] / modules / m_accept.c

/*
 *  ircd-ratbox: A slightly useful ircd.
 *  m_accept.c: Allows a user to talk to a +g user.
 *
 *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
 *  Copyright (C) 1996-2002 Hybrid Development Team
 *  Copyright (C) 2002-2005 ircd-ratbox development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 */

#include "stdinc.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"

static int m_accept(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void build_nicklist(struct Client *, char *, char *, const char *);

static void add_accept(struct Client *, struct Client *);
static void list_accepts(struct Client *);

struct Message accept_msgtab = {
	"ACCEPT", 0, 0, 0, 0,
	{mg_unreg, {m_accept, 2}, mg_ignore, mg_ignore, mg_ignore, {m_accept, 2}}
};

mapi_clist_av1 accept_clist[] = {
	&accept_msgtab, NULL
};
static const char accept_desc[] =
	"Provides the ACCEPT command for use with Caller ID/user mode +g";

DECLARE_MODULE_AV2(accept, NULL, NULL, accept_clist, NULL, NULL, NULL, NULL, accept_desc);

/*
 * m_accept - ACCEPT command handler
 *      parv[1] = servername
 */
static int
m_accept(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	char *nick;
	char *p = NULL;
	static char addbuf[BUFSIZE];
	static char delbuf[BUFSIZE];
	struct Client *target_p;
	int accept_num;

	if(*parv[1] == '*')
	{
		list_accepts(source_p);
		return 0;
	}

	build_nicklist(source_p, addbuf, delbuf, parv[1]);

	/* parse the delete list */
	for (nick = rb_strtok_r(delbuf, ",", &p); nick != NULL; nick = rb_strtok_r(NULL, ",", &p))
	{
		/* shouldnt happen, but lets be paranoid */
		if((target_p = find_named_person(nick)) == NULL)
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK,
					   form_str(ERR_NOSUCHNICK), nick);
			continue;
		}

		/* user isnt on clients accept list */
		if(!accept_message(target_p, source_p))
		{
			sendto_one(source_p, form_str(ERR_ACCEPTNOT),
				   me.name, source_p->name, target_p->name);
			continue;
		}

		rb_dlinkFindDestroy(target_p, &source_p->localClient->allow_list);
		rb_dlinkFindDestroy(source_p, &target_p->on_allow_list);
	}

	/* get the number of accepts they have */
	accept_num = rb_dlink_list_length(&source_p->localClient->allow_list);

	/* parse the add list */
	for (nick = rb_strtok_r(addbuf, ",", &p); nick; nick = rb_strtok_r(NULL, ",", &p), accept_num++)
	{
		/* shouldnt happen, but lets be paranoid */
		if((target_p = find_named_person(nick)) == NULL)
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK,
					   form_str(ERR_NOSUCHNICK), nick);
			continue;
		}

		/* user is already on clients accept list */
		if(accept_message(target_p, source_p))
		{
			sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
				   me.name, source_p->name, target_p->name);
			continue;
		}

		if(accept_num >= ConfigFileEntry.max_accept)
		{
			sendto_one(source_p, form_str(ERR_ACCEPTFULL), me.name, source_p->name);
			return 0;
		}

		/* why is this here? */
		/* del_from accept(target_p, source_p); */
		add_accept(source_p, target_p);
	}

	return 0;
}

/*
 * build_nicklist()
 *
 * input	- pointer to client
 *		- pointer to addbuffer
 *		- pointer to remove buffer
 *		- pointer to list of nicks
 * output	-
 * side effects - addbuf/delbuf are modified to give valid nicks
 */
static void
build_nicklist(struct Client *source_p, char *addbuf, char *delbuf, const char *nicks)
{
	char *name;
	char *p;
	int lenadd;
	int lendel;
	int del;
	char *n = LOCAL_COPY(nicks);

	*addbuf = *delbuf = '\0';
	del = lenadd = lendel = 0;

	/* build list of clients to add into addbuf, clients to remove in delbuf */
	for (name = rb_strtok_r(n, ",", &p); name; name = rb_strtok_r(NULL, ",", &p), del = 0)
	{
		if(*name == '-')
		{
			del = 1;
			name++;
		}

		if(find_named_person(name) == NULL)
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK,
					   form_str(ERR_NOSUCHNICK), name);
			continue;
		}

		/* we're deleting a client */
		if(del)
		{
			if(*delbuf)
				(void) strcat(delbuf, ",");

			(void) strncat(delbuf, name, BUFSIZE - lendel - 1);
			lendel += strlen(name) + 1;
		}
		/* adding a client */
		else
		{
			if(*addbuf)
				(void) strcat(addbuf, ",");

			(void) strncat(addbuf, name, BUFSIZE - lenadd - 1);
			lenadd += strlen(name) + 1;
		}
	}
}

/*
 * add_accept()
 *
 * input	- pointer to clients accept list to add to
 * 		- pointer to client to add
 * output	- none
 * side effects - target is added to clients list
 */
static void
add_accept(struct Client *source_p, struct Client *target_p)
{
	rb_dlinkAddAlloc(target_p, &source_p->localClient->allow_list);
	rb_dlinkAddAlloc(source_p, &target_p->on_allow_list);
}


/*
 * list_accepts()
 *
 * input 	- pointer to client
 * output	- none
 * side effects	- print accept list to client
 */
static void
list_accepts(struct Client *source_p)
{
	rb_dlink_node *ptr;
	struct Client *target_p;
	char nicks[BUFSIZE];
	int len = 0;
	int len2 = 0;
	int count = 0;

	*nicks = '\0';
	len2 = strlen(source_p->name) + 10;

	RB_DLINK_FOREACH(ptr, source_p->localClient->allow_list.head)
	{
		target_p = ptr->data;

		if(target_p)
		{

			if((len + strlen(target_p->name) + len2 > BUFSIZE) || count > 14)
			{
				sendto_one(source_p, form_str(RPL_ACCEPTLIST),
					   me.name, source_p->name, nicks);

				len = count = 0;
				*nicks = '\0';
			}

			len += snprintf(nicks + len, sizeof(nicks) - len, "%s ", target_p->name);
			count++;
		}
	}

	if(*nicks)
		sendto_one(source_p, form_str(RPL_ACCEPTLIST),
			   me.name, source_p->name, nicks);

	sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
		   me.name, source_p->name);

}
Commit	Line	Data
212380e3 AC	1	/*
	2	* ircd-ratbox: A slightly useful ircd.
	3	* m_accept.c: Allows a user to talk to a +g user.
	4	*
	5	* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
	6	* Copyright (C) 1996-2002 Hybrid Development Team
	7	* Copyright (C) 2002-2005 ircd-ratbox development team
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	22	* USA
212380e3 AC	23	*/
	24
	25	#include "stdinc.h"
	26	#include "client.h"
	27	#include "hash.h"
	28	#include "ircd.h"
	29	#include "numeric.h"
	30	#include "s_conf.h"
	31	#include "s_serv.h"
	32	#include "send.h"
	33	#include "msg.h"
	34	#include "parse.h"
212380e3 AC	35	#include "modules.h"
212380e3 AC	36
428ca87b	37	static int m_accept(struct MsgBuf , struct Client , struct Client , int, const char *);
212380e3 AC	38	static void build_nicklist(struct Client , char , char , const char );
	39
	40	static void add_accept(struct Client , struct Client );
	41	static void list_accepts(struct Client *);
	42
	43	struct Message accept_msgtab = {
7baa37a9	44	"ACCEPT", 0, 0, 0, 0,
212380e3 AC	45	{mg_unreg, {m_accept, 2}, mg_ignore, mg_ignore, mg_ignore, {m_accept, 2}}
	46	};
	47
	48	mapi_clist_av1 accept_clist[] = {
	49	&accept_msgtab, NULL
	50	};
3c88406e EM	51	static const char accept_desc[] =
	52	"Provides the ACCEPT command for use with Caller ID/user mode +g";
	53
	54	DECLARE_MODULE_AV2(accept, NULL, NULL, accept_clist, NULL, NULL, NULL, NULL, accept_desc);
212380e3 AC	55
	56	/*
	57	* m_accept - ACCEPT command handler
212380e3 AC	58	* parv[1] = servername
	59	*/
	60	static int
428ca87b	61	m_accept(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	62	{
	63	char *nick;
	64	char *p = NULL;
	65	static char addbuf[BUFSIZE];
	66	static char delbuf[BUFSIZE];
	67	struct Client *target_p;
	68	int accept_num;
	69
	70	if(parv[1] == '')
	71	{
	72	list_accepts(source_p);
	73	return 0;
	74	}
	75
	76	build_nicklist(source_p, addbuf, delbuf, parv[1]);
	77
	78	/* parse the delete list */
4a2651e5	79	for (nick = rb_strtok_r(delbuf, ",", &p); nick != NULL; nick = rb_strtok_r(NULL, ",", &p))
212380e3 AC	80	{
	81	/* shouldnt happen, but lets be paranoid */
	82	if((target_p = find_named_person(nick)) == NULL)
	83	{
	84	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
	85	form_str(ERR_NOSUCHNICK), nick);
	86	continue;
	87	}
	88
	89	/* user isnt on clients accept list */
	90	if(!accept_message(target_p, source_p))
	91	{
	92	sendto_one(source_p, form_str(ERR_ACCEPTNOT),
	93	me.name, source_p->name, target_p->name);
	94	continue;
	95	}
	96
555ac41f JT	97	rb_dlinkFindDestroy(target_p, &source_p->localClient->allow_list);
555ac41f JT	98	rb_dlinkFindDestroy(source_p, &target_p->on_allow_list);
212380e3 AC	99	}
	100
	101	/* get the number of accepts they have */
5b96d9a6	102	accept_num = rb_dlink_list_length(&source_p->localClient->allow_list);
212380e3 AC	103
212380e3 AC	104	/* parse the add list */
4a2651e5	105	for (nick = rb_strtok_r(addbuf, ",", &p); nick; nick = rb_strtok_r(NULL, ",", &p), accept_num++)
212380e3 AC	106	{
	107	/* shouldnt happen, but lets be paranoid */
	108	if((target_p = find_named_person(nick)) == NULL)
	109	{
	110	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
	111	form_str(ERR_NOSUCHNICK), nick);
	112	continue;
	113	}
	114
	115	/* user is already on clients accept list */
	116	if(accept_message(target_p, source_p))
	117	{
	118	sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
	119	me.name, source_p->name, target_p->name);
	120	continue;
	121	}
	122
	123	if(accept_num >= ConfigFileEntry.max_accept)
	124	{
	125	sendto_one(source_p, form_str(ERR_ACCEPTFULL), me.name, source_p->name);
	126	return 0;
	127	}
	128
	129	/* why is this here? */
	130	/* del_from accept(target_p, source_p); */
	131	add_accept(source_p, target_p);
212380e3 AC	132	}
	133
	134	return 0;
	135	}
	136
	137	/*
	138	* build_nicklist()
	139	*
	140	* input - pointer to client
	141	* - pointer to addbuffer
	142	* - pointer to remove buffer
	143	* - pointer to list of nicks
55abcbb2	144	* output -
212380e3 AC	145	* side effects - addbuf/delbuf are modified to give valid nicks
	146	*/
	147	static void
	148	build_nicklist(struct Client source_p, char addbuf, char delbuf, const char nicks)
	149	{
	150	char *name;
	151	char *p;
	152	int lenadd;
	153	int lendel;
	154	int del;
212380e3 AC	155	char *n = LOCAL_COPY(nicks);
	156
	157	addbuf = delbuf = '\0';
	158	del = lenadd = lendel = 0;
	159
	160	/* build list of clients to add into addbuf, clients to remove in delbuf */
4a2651e5	161	for (name = rb_strtok_r(n, ",", &p); name; name = rb_strtok_r(NULL, ",", &p), del = 0)
212380e3 AC	162	{
	163	if(*name == '-')
	164	{
	165	del = 1;
	166	name++;
	167	}
	168
f93bc397	169	if(find_named_person(name) == NULL)
212380e3	170	{
55abcbb2	171	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
212380e3 AC	172	form_str(ERR_NOSUCHNICK), name);
	173	continue;
	174	}
	175
	176	/* we're deleting a client */
	177	if(del)
	178	{
	179	if(*delbuf)
	180	(void) strcat(delbuf, ",");
	181
	182	(void) strncat(delbuf, name, BUFSIZE - lendel - 1);
	183	lendel += strlen(name) + 1;
	184	}
	185	/* adding a client */
	186	else
	187	{
	188	if(*addbuf)
	189	(void) strcat(addbuf, ",");
	190
	191	(void) strncat(addbuf, name, BUFSIZE - lenadd - 1);
	192	lenadd += strlen(name) + 1;
	193	}
	194	}
	195	}
	196
	197	/*
	198	* add_accept()
	199	*
	200	* input - pointer to clients accept list to add to
	201	* - pointer to client to add
	202	* output - none
	203	* side effects - target is added to clients list
	204	*/
	205	static void
	206	add_accept(struct Client source_p, struct Client target_p)
	207	{
7018b86a JT	208	rb_dlinkAddAlloc(target_p, &source_p->localClient->allow_list);
7018b86a JT	209	rb_dlinkAddAlloc(source_p, &target_p->on_allow_list);
212380e3 AC	210	}
	211
	212
	213	/*
	214	* list_accepts()
	215	*
	216	* input - pointer to client
	217	* output - none
	218	* side effects - print accept list to client
	219	*/
	220	static void
	221	list_accepts(struct Client *source_p)
	222	{
5b96d9a6	223	rb_dlink_node *ptr;
212380e3 AC	224	struct Client *target_p;
	225	char nicks[BUFSIZE];
	226	int len = 0;
	227	int len2 = 0;
	228	int count = 0;
	229
	230	*nicks = '\0';
	231	len2 = strlen(source_p->name) + 10;
	232
5b96d9a6	233	RB_DLINK_FOREACH(ptr, source_p->localClient->allow_list.head)
212380e3 AC	234	{
	235	target_p = ptr->data;
	236
	237	if(target_p)
	238	{
	239
	240	if((len + strlen(target_p->name) + len2 > BUFSIZE) \|\| count > 14)
	241	{
	242	sendto_one(source_p, form_str(RPL_ACCEPTLIST),
	243	me.name, source_p->name, nicks);
	244
	245	len = count = 0;
	246	*nicks = '\0';
	247	}
	248
5203cba5	249	len += snprintf(nicks + len, sizeof(nicks) - len, "%s ", target_p->name);
212380e3 AC	250	count++;
	251	}
	252	}
	253
	254	if(*nicks)
55abcbb2	255	sendto_one(source_p, form_str(RPL_ACCEPTLIST),
212380e3 AC	256	me.name, source_p->name, nicks);
212380e3 AC	257
55abcbb2	258	sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
212380e3 AC	259	me.name, source_p->name);
	260
	261	}